[c-nsp] Odd problem with bgp resets on SRD3

Mon Mar 22 10:43:50 EDT 2010

 Thank you for answer,
This bug details  is very similar to our problem.

We will try to apply this workaround
  If this helps us we will write about it

2010/3/22 Paolo Lucente <pl+list at pmacct.net <pl%2Blist at pmacct.net>>

> Perhaps it's CSCtd26215. If BGP dampening is enabled, give a try disabling
> it.
>
> Cheers,
> Paolo
>
> On Mon, Mar 22, 2010 at 01:02:59PM +0200, teslenko.andrey at gmail.com wrote:
> >
> > Hello all,
> >
> > We have faced the same problem when we have tried to update to version
> > SRD4.
> > Our hardware is  Cisco 7600 with RSP720-3CXL-GE with 2GB RAM and
> > WS-X6704-10GE.
> > We have observed the bgp notification in logging such as "neighbor
> > 1xx.x.x.x 3/1 (update malformed)".
> > The all sessions get down after that with message "Down No memory"
> >
> > Who was faced with such problem also? How to solve it?
> >
> > We had the following errors log occur:
> >
> > %BGP-5-ADJCHANGE: neighbor 1xx.x.x.x Down BGP Notification sent
> > %BGP-3-NOTIFICATION: sent to neighbor 1xx.x.x.x 3/1 (update malformed) 0
> > bytes
> > %BGP-4-MSGDUMP: unsupported or mal-formatted message received from
> > 1xx.x.x.x: FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 004F 0200 0000 3440
> > 0101 0040 0208 0203 00AE 04D7 8F11 4003 0495 068D A980 0404 0001 4C26
> > 4006 00C0 0706 8F11  D018 1489 C008 0800 AE52 0800 AE55 FD18 C029 A2
> > %BGP-5-ADJCHANGE: neighbor 10.x.x.x vpn vrf XX Down No memory
> > %BGP_SESSION-5-ADJCHANGE: neighbor 10.x.x.x IPv4 Unicast vpn vrf IT
> > topology  base removed from session  No memory
> > %BGP-5-ADJCHANGE: neighbor 6x.x.x.x Down No memory
> > %BGP_SESSION-5-ADJCHANGE: neighbor 6x.x.x.x IPv4 Unicast topology base
> > removed  from session  No memory ...
> >
> >
> >
> > Mack McBride ??????????:
> > > I am looking at 2 - 7600s with RSP720-3CXLs w/ 4GB of RAM and 6708-3CXL
> cards running SRD3.
> > > These are not currently production equipment but are connected to
> upstreams
> > > as well as route-reflectors but are not advertising routes as we have
> advertisements blocked
> > > with a deny-all prefix list.  We THINK the dumped BGP packet is
> correctly formatted and
> > > the packet dumped is actually the packet before the bad packet.  Has
> anyone else
> > > seen similar issues?  Does anyone else know if this is a known bug that
> exists in this code or
> > > early versions of the SRD train?  I know there are entirely too many
> caveats in SRC5.
> > >
> > > Mack McBride
> > > Network Architect
> > > ViaWest, Inc.
> > >
> > > We had the following errors occur:
> > >
> > > Log from 7600-01:
> > > Nov 24 02:41:59.696 MST: %BGP-5-ADJCHANGE: neighbor 207.xx.xx.xx Down
> BGP Notification sent
> > > Nov 24 02:41:59.696 MST: %BGP-3-NOTIFICATION: sent to neighbor
> 207.xx.xx.xx 3/1 (update malformed) 0 bytes
> > > Nov 24 02:41:59.696 MST: %BGP-4-MSGDUMP: unsupported or mal-formatted
> message received from 207.xx.xx.xx:
> > > FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 0064 0200 0000 4940 0101 0040
> 0208 0203
> > > 10E3 00AE 0865 4003 04CF FA73 1540 0600 C007 0608 659A 3604 36C0 0824
> 10E3 0033
> > > 10E3 01F5 10E3 03F7 10E3 09C7 10E3 C350 FE4D 03F7 FE4E 0004 FE4F 0001
> FE50 012D
> > > 18C0 2104
> > > Nov 24 02:41:59.748 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx1 Down
> No memory
> > > Nov 24 02:41:59.748 MST: %BGP_SESSION-5-ADJCHANGE: neighbor
> 74.xx.xx.xx1 IPv4 Unicast topology base removed from session  No memory
> > > Nov 24 02:41:59.748 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx2 Down
> No memory
> > > Nov 24 02:41:59.748 MST: %BGP_SESSION-5-ADJCHANGE: neighbor
> 74.xx.xx.xx2 IPv4 Unicast topology base removed from session  No memory
> > > Nov 24 02:41:59.748 MST: %BGP_SESSION-5-ADJCHANGE: neighbor
> 207.xx.xx.xx IPv4 Unicast topology base removed from session  BGP
> Notification sent
> > > Nov 24 02:42:06.384 MST: %BGP-5-ADJCHANGE: neighbor 207.xx.xx.xx Up
> > > Nov 24 02:42:12.640 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx2 Up
> > > Nov 24 02:42:12.672 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx1 Up
> > > Nov 24 02:42:31.436 MST: %BGP-5-ADJCHANGE: neighbor 207.xx.xx.xx Down
> BGP Notification sent
> > > Nov 24 02:42:31.436 MST: %BGP-3-NOTIFICATION: sent to neighbor
> 207.xx.xx.xx 3/1 (update malformed) 0 bytes
> > > Nov 24 02:42:31.440 MST: %BGP-4-MSGDUMP: unsupported or mal-formatted
> message received from 207.xx.xx.xx:
> > > FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 0064 0200 0000 4940 0101 0040
> 0208 0203
> > > 10E3 00AE 0865 4003 04CF FA73 1540 0600 C007 0608 659A 3604 42C0 0824
> 10E3 0033
> > > 10E3 01F5 10E3 03F7 10E3 09C7 10E3 C350 FE4D 03F7 FE4E 0004 FE4F 0001
> FE50 012D
> > > 18C0 2104
> > > Nov 24 02:42:31.504 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx1 Down
> No memory
> > > Nov 24 02:42:31.504 MST: %BGP_SESSION-5-ADJCHANGE: neighbor
> 74.xx.xx.xx1 IPv4 Unicast topology base removed from session  No memory
> > > Nov 24 02:42:31.504 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx2 Down
> No memory
> > > Nov 24 02:42:31.504 MST: %BGP_SESSION-5-ADJCHANGE: neighbor
> 74.xx.xx.xx2 IPv4 Unicast topology base removed from session  No memory
> > > Nov 24 02:42:31.504 MST: %BGP_SESSION-5-ADJCHANGE: neighbor
> 207.xx.xx.xx IPv4 Unicast topology base removed from session  BGP
> Notification sent
> > > Nov 24 02:42:38.620 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx2 Up
> > > Nov 24 02:42:38.620 MST: %BGP-5-ADJCHANGE: neighbor 207.xx.xx.xx Up
> > > Nov 24 02:42:42.928 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx1 Up
> > >
> > > 7600-02:
> > > Nov 24 02:42:16.343 MST: %BGP-5-ADJCHANGE: neighbor 4.xx.xx.xx Down BGP
> Notification sent
> > > Nov 24 02:42:16.343 MST: %BGP-3-NOTIFICATION: sent to neighbor
> 4.xx.xx.xx 3/1 (update malformed) 0 bytes
> > > Nov 24 02:42:16.343 MST: %BGP-4-MSGDUMP: unsupported or mal-formatted
> message received from 4.xx.xx.xx:
> > > FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 005F 0200 0000 4440 0101 0040
> 0208 0203
> > > 0D1C 00AE 0865 4003 0404 350B 8580 0404 0000 0000 4006 00C0 0706 0865
> 9A36 0436
> > > C008 180D 1C00 030D 1C00 160D 1C00 560D 1C02 3F0D 1C02 9A0D 1C07 D818
> C021 04
> > > Nov 24 02:42:16.403 MST: %BGP_SESSION-5-ADJCHANGE: neighbor 4.xx.xx.xx
> IPv4 Unicast topology base removed from session  BGP Notification sent
> > > Nov 24 02:42:16.403 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx1 Down
> No memory
> > > Nov 24 02:42:16.403 MST: %BGP_SESSION-5-ADJCHANGE: neighbor
> 74.xx.xx.xx1 IPv4 Unicast topology base removed from session  No memory
> > > Nov 24 02:42:16.403 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx2 Down
> No memory
> > > Nov 24 02:42:16.403 MST: %BGP_SESSION-5-ADJCHANGE: neighbor
> 74.xx.xx.xx2 IPv4 Unicast topology base removed from session  No memory
> > > Nov 24 02:42:22.907 MST: %BGP-5-ADJCHANGE: neighbor 4.xx.xx.xx Up
> > > Nov 24 02:42:25.551 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx2 Up
> > > Nov 24 02:42:29.107 MST: %BGP-5-ADJCHANGE: neighbor 74.xx.xx.xx1 Up
> > >
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